Reid Asset Management Company

William C Condit

Robert W Brown

Donald E Schuele

Yu-Chung Norman Cheng

The present invention includes a method of detecting contamination in a fluid sample includes bringing a fluid sample into contact with a pair of spaced apart electrodes and applying a plurality of voltages across the electrodes, wherein the plurality of voltages vary in magnitude between a first and second voltage level. The current is then measured between the electrodes at the plurality of voltages and a contamination level is determined using the measured currents. The present invention also includes a system for determining a particulate contamination level in a fluid sample. The system includes a sensor including a pair of spaced apart electrodes, wherein the fluid sample is brought into contact with the electrodes for detection of the level of particulate contamination therein, and a voltage application means for applying a voltage across the spaced apart electrodes. The system also further includes a current sensor coupled to one of the electrodes. The current sensor measures a current magnitude between the electrodes and the current magnitude is associated with the particulate contamination level in the fluid sample.

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Strongsville, OH, United States of America

William C Condit